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The HKS 120Hiper inner silencer assembly is an in-line muffler silencer component intended to tune exhaust tone and reduce resonance inside a larger muffler system. Supplied as an assembled inner core, it can be used where the 120mm Hiper profile is required to refine sound without changing external hardware. It’s a focused replacement part for exhaust systems needing internal damping.
HKS 120Hiper Inner Silencer Assy
